The routine assigns a specified element of a GRP group to a message token for use in constructing messages with the ERR_ and MSG_ routines (see SUN/104).

CALL GRP_MSG( TOKEN, IGRP, INDEX )

TOKEN = CHARACTER $\ast$ ( $\ast$ ) (Given)

IGRP = INTEGER (Given)

INDEX = INTEGER (Given)

• This routine has no inherited status argument. It will always attempt to execute, and no error will be reported if it should fail (although the message token will be assigned a blank string).